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118967-32-1

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118967-32-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118967-32-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,9,6 and 7 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 118967-32:
(8*1)+(7*1)+(6*8)+(5*9)+(4*6)+(3*7)+(2*3)+(1*2)=161
161 % 10 = 1
So 118967-32-1 is a valid CAS Registry Number.

118967-32-1Relevant articles and documents

SYNTHESIS OF QUINOLINE-4-CARBOXYLIC ACID AND ITS DERIVATIVES

Brasyunas, V.B.,Andreyanova, T.A.,Safonova, T.S.,Solov'eva, N.P.,Turchin, K.F.,Sheinker, Yu.N.

, p. 670 - 673 (1988)

2-Methylquinoline-4-carboxylic acid was obtained by the reaction of isatin with acetone in the presence of alkali.This acid was converted through a step involving (E)-2-styrylquinoline-4-carboxylic acid to quinoline-2,4-dicarboxylic acid, from which quinoline-4-carboxylic acid was obtained by refluxing in nitrobenzene.The structures of the synthesized compounds were confirmed by 1H NMR spectroscopy using two-dimensional (2DJ) spectra.

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